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Accession Number:
ADA379406
Title:
Recirculation Filter Unit for the M28 Simplified Collective Protection Systems: Adsorption Equilibria of Candidate Nonwoven Microporous Media
Descriptive Note:
Final rept. Jun 1998-May 1999
Corporate Author:
EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD
Report Date:
2000-06-01
Pagination or Media Count:
19.0
Abstract:
Adsorption equilibria of nitrogen, hexane, and DMMP are provided on two nonwoven adsorbent materials recommended for use in the recirculation filter unit RFU for the M28 Collective Protection System. The objective of this report is to correlate adsorption equilibria of the three adsorbates and to provide a model to predict the adsorption capacity of the media for toxic chemical agents over an extended range of vapor concentrations. This information may be used to select the best adsorbent materials for the RFU as well as to establish production acceptance criteria consistent with field use requirements. Adsorption equilibria of nitrogen, hexane, and DMMP on POLYSORB PS and Purification Products PP adsorbent materials show that there is much less adsorption capacity per unit packing volume than typical granular bed activated carbons such as BPL. A Dubinin-Radustikevich DR potential plot of the combined nitrogen, hexane, and DMMP data shows that the total estimated micropore volume of the PS and PP adsorbent materials is 0.113 and 0.077 mLg of material, respectively. On a volume basis, the PP material may provide about 2.8 times more adsorptive capacity than the PS material. The estimated adsorbed phase loading of HE mustard at 0.029 mgm3 at 25 degrees C is about 0.035 and 0.015 mLg of material for the PS and PP materials, respectively.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE
